Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
2100184heavily pollutedexcellent41excellent
200012excellentexcellent11excellent
19006excellentexcellent11excellent
18007excellentexcellent11excellent
170011excellentexcellent21excellent
160015excellentexcellent31excellent
150018excellentexcellent21excellent
140027goodexcellent41excellent
130026goodexcellent41excellent
120037goodexcellent71excellent
110057goodexcellent101excellent
100073lightly pollutedexcellent161excellent
0900108moderately pollutedexcellent181excellent
0800123moderately pollutedexcellent181excellent
0700106moderately pollutedexcellent161excellent
0600100lightly pollutedexcellent161excellent
050067lightly pollutedexcellent121excellent
040070lightly pollutedexcellent111excellent
030061lightly pollutedexcellent111excellent
020051goodexcellent81excellent
010046goodexcellent81excellent
000048goodexcellent71excellent
230046goodexcellent81excellent
220059goodexcellent101excellent